I just installed a Rainmachine HD-12 for my home in San Jose, CA to control irrigation in the front and backyards.
My first question is how to setup for watering the front lawn? I read to program the unit as if watering during a hot week in summer, but I don't really know what that means. I figure that 40 minutes/week is the max I want to water the lawn each week, even in summer (the water bills in Santa Clara county are bad even at that rate).
Can I just set it at 20 minutes twice a week and let the unit adjust the amount the rest of the year? I suppose I will try this and just see what happens - if the lawn starts showing stress will bump it up a little.
Also, does the Rainmachine have a different watering formula for lawns, say versus bushes/drip irrigation? Or are there settings that should be adjusted according to what is being watered to help it do a better job?
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